Traverse motion



Dec. 2, 1941; A. E. wlNsLow TRAVERSE MOTION Filed Dec. 11,-194'0 5 Sheets-Sheet 1 INVENToR. fa/WVS/ W Bydaw mf A TTORNEYS.

Dec. 2, 1941. A E WlNSLow 2,264,424

TRAVERSE MOT ION Filed Dec. 11, 1940 sheets-Sheet VW G ,vllllllllllllllllll 1 muni 11 INV EN T 0R.

ATTORNEYS.

Dec. 2, 1941. A. E. wlNsLow 2,264,424

TRAVERSE MOTION Filed Dec. l1, 1940 5 Sheets-Sheet 5 A TTORNEYS.

Dec. 2, 1941. A. E. w'lNsLow 2,264,424

TRAVERSE MOTION Fi1ed Dec. 11, 1940 v. 5 sheets-s116614 Y@ g l IN VEN TOR.

A TT ORNE YS.

Dec. 2, 1941. l A. E. wlNsLow 2,264,424

TRAVERSE 'MOTION Filed Deo.' l1, 1940 5 Sheets--Sheerl 5 A TTORN E YS.

Patented Dec. 2, 1941 TRAVERSE MOTION Albert E. Winslow, New London, Conn., assigner to Atwood Machine Company, a corporation of Connecticut Application December 11. 1940, Serial No. 369,681 1 15 Claims.

This invention relates to a traverse motion for yarn packaging; and has for one of its objects to provide an arrangement whereby yarn will be packaged' sufficiently non-uniformly so as to prevent the formation of so-called mirrors or places in the package formation which permit of undesired shifting of the yarn.

Another object of the invention is to prevent the formation of frequent repeats in the packaging of yarn, while at the same time utilizing a straight-line motion and an adjustable length of traverse.

Another object of the invention is to provide for obtaining the non-frequent repeating of the laying of the yarn in a package by Varying the speed of a uniformly-generated guide surface or cam so that such guides now in operation may be utilized for the purpose.

Another object of the invention is to provide a traverse motion which is of such a nature' that better lubrication can be maintatined.

Another object of the invention is to provide a traverse motion without any sliding parts, but rather all parts having relative motion are pivoted that mre easilylubricated rotary motion may be provided.

More specifically, the invention is 4carried out by varying the speed of a uniformly-generated cam to provide for the non-frequent repeating formation of the package. l

Additionally, the invention may be carried out by varying the speed and at the same time varying the axial position of a uniformly-generated cam that a non-frequent repeat in the packaging of the yarnmay be formed.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a side elevation of the mechanism which is employed for controlling the motion transmitted to the traverse bar; A Fig. 2 is an end view thereof; Fig. 3 is a section on substantially line 3-3 of Fig. 2 and showing the control mechanism on av vvarious positions which this lever may assume in its operation; v

Fig. 'l is an elevation illustrating the mech' anism for controlling the device;

Fig. 8 is a sectional view of the structure shown in Fig. '7;

Fig. 9 is a section on line 9- 9 of Fig. 8;

Fig. 10 is an elevation of the motion-transmitting bell crank lever: I

Fig. 11 is a section online II-II of Fig. 10; and

Fig. 12 is a section showing diagrammatically the effect of relative motion of two spiral gears.

In yarn packaging it is frequent that so-called mirrors may be formed due to the uniform repeat of the yarn as laid on the package. It is desirable that this uniformity be broken up so` that the package, when yarn is drawn therefrom, will not have layers of yarn slide one on the length of traverse of the other to disturb the unreeling thereof; and inA order to accomplish this result and still use a cam or other guide which has a uniformly-generated guide surface, the speed of rotation imparted to such a guide member is varied and so arranged that this membermay be shifted axially as desired and at the same time so arranged that the throw or length of traverse may be controlled in a substantial range; and the following is a more detailed description of the present embodiment of this invention, illustrating the preferred means by which these advantageous results may be accomplished:

With reference to the drawings, I0 designates one part of the framework or fixed support for the bearing of the main shaft of the mechanism, and I I, another portion of the framework or support for a fixed bearing of the main shaft of the mechanism. The main shaft is designated I2 and is shown as having bushings I3 and I4 formlng bearings for the end portions I5 and I6 of the shaft I2. These bushings I3and I4 may be replaced by anti-friction bearings which will permit of easier axial movement of the shaft under some conditions to be hereinafter explained. This shaft I2 has a spiral gear I1 keyed as at I8 to it (Fig. 3), and a spiral gear I9 loosely mounted on the shaft I2 and freely rotatable relative to the shaft I2. These gears are of different sizes and are driven from shaft 20 by small spiral gear 2|` meshing with spiral gear I1 and largerspiral gear 22 meshing with gear I9,

both of these gears being keyed to the shaft 20 and thisv shaft inturn vbeing driven by gear 23, which in turn is driven by gear 24 (see Figs. 1

and 2) on shaft 25 receiving power from some operative part of the packaging machine.

Also mounted on the shaft I2 there is an eccentric 26 whichis keyed to the shaft I2 as at 2l. An annulus 28 is freely rotatable about the eccentric 26. A cam 29 having a channelshaped slot 30 at its peripheral edge and a web portion 3l and hub 32 is freely rotatable on and relative to the shaft I2. The annulus 28 has a slot 33 therein, while the hub 32 of the cam has a slot 34B therein. A pin 35 is carried by gear i3 and has an anti-friction roller 36 carried thereby and located in slot 33, while the annulus has a pin 3l having an anti-afriction roller 38 thereon which extends into the slot 34% of the 'cam hub. Thus, as rotation of the annulus occurs, the hub of the cam will also be rotated about the shaft I2. The shaft i2 also has mounted upon it a controlling member designated t for relative axial movement which consists of a sleeve portion fil with spaced flanges 52, i3 and it extending therefrom. The faces between the flanges l2 and d3 provide an inclined groove it tapered to receive the cam follower d; and likewise, the Surfaces between the flanges t3 and dfi similarly provide a groove d1 for the reception of the`cam follower d5. Either one or both of these grooves may be cam-faced so that as the follower t5 engages the same, relative axial movement of the memberll and consequently the shaft I2 will be produced.` In the preferred arrangement, the groove lil will present this cam surface, while the groove d6 will be plain and at right angles to the axis of the shaft I2.

The various members referred to as mounted upon the shaft I2; namely, hub of gear i1, hub of gear I9, eccentric 26, hub 32 of cam 29, sleeve il of the member dll, are in engagement with each other and are prevented from axial movement along the shaft by washers 63 and nuts 9 on the threaded portion 50 of the shaft at each end thereof. Thus, shouldany motion be produced by reason of the cam surfaces di, the entire shaft will slide in its bearings i3 and lt which may be anti-friction bearings if desired. The cam follower 45 is rotatably mounted upon the stud 5I suitably secured as at 52 in the overhanging portion 53 of the framework it which has been heretofore referred to as providing a support for the bearing I3. A suitable casing about the lower part of the mechanism'which' has been described is indicated at 5&1 as being semi-cylindrical and provides a container for a lubricant or a catch basin for lubricant which is provided -for the moving parts hereinbefore described.

A cam follower Si) is received in the slot 30 of the cam 29 and is connected to the fulcrum point 6I of the bell crank lever designated generally 62 (see Fig. 6) and comprising arms 63 and 54. The fulcrum of this lever is also supported on a link 65 which is attached to the swinging arm 66 as at 6l and to the swinging arm 68 as at 69. The position and length of the arms 66 and 62 are such as to produce a substantially straight-line motion of the pivot 6I of the bell crank lever 62. The arm 63 of this bell crank lever is connected to traverse bar I0 through an adjustable connection such as a turn buckle i2 that the distance of the connection between the end I3 of the arm 63 and the traverse bar 'l0 may be adjusted. If no movement of the bell crank lever 62 about its pivot 6I occurs, it would thus be apparent that the amount of motion transmitted to the pivot point SI through the cam follower 63 would be transmitted to the traverse bar 10 so that exactly the length which was transmitted to the cam follower '60 would occur in the traverse bar.

'Ihe end I5 of the arm 64 is connected to a slide I3 guided between the parallel walls 1! of the throw control unit designated generally 13, these parallel walls 'Il providing a guide for the slide. This guide l1 is illustrated in Figs. 1, 3 and 6. as parallel to the shaft I2 and when in 'this position will not affect the transmission of motion from the cam follower B0 to the' traverse bar I0 to change the length of traverse, and the full length of traverse transmitted by the cam 29 will be imparted to-the traverse bar it. The guide ll, however, .is mounted upon a disc IQ which may be rotated in its mounting so as to incline the guide either toward the right or the left as viewed in Fig. 6. The inclination of the guide is had through the threads S2 on the disc '59 engaging the threaded pin 83 which is turned by the handle 84 and held in set position by the set screw B5 and lock nut 86. The amount of inclination is indicated by reason of the arrow 81 turning with the disc 'I9 to indicate the amount of inclination as it moves with reference to graduations 83. The inclination of this guide will either decrease or increase the length of throw or length of traverse imparted to the traverse bar 10. This change occurs by reason of the swinging of lever 62 about pivot 6I as shown in the dotted lines (Fig. 6) to either subtract oradd to the throw of the cam follower 60 carried by the pivot 6I. from the neutral horizontal position, the pointer 8l will be moved to the plus side of the scale, as shown in Fig. 7 to incline the guide 'I7 in the opposite direction. The numeral marks of the graduations may be in any linear measure which it is desired to apply to the length of the traverse motion.

In order to protect the gearing, should the traverse jam, I have providedgarm 63 of lever 62 in two parts, and 9|, having a tongue and groove connection 92 (see Fig. 10 and Fig. 11) held in engagement by a spring 93 encircling a pin 9d connecting the two parts 90 and 9| so that, Oshould excessive pressure occur, part 90 would swing about pin 94, as shown in dotted lines in Fig. 10, and prevent rupture of the more delicate parts of the driving mechanism.

In operation, the shaft I2 will be driven through gears 24, 23, shaft 20, and gears 2l and Il to rotate the eccentric 26 and member I0 therewith. The cam will be driven from gear 23 and shaft 2d by gear 22, gear I9, annulus 28 with its slot and pin connection tothe gear I9 and its slot and pin connection to the hub 32 of the cam. The rotation given to the cam will vary by reason of the eccentric which changes the radius of the application of power through pin 35 to the annulus and the radius of the application of power of the pin 3l to the hub. Thus, the speed at which the cam is rotated is ever changing and mathematically calculated, the repeat will occur once in several million times, which is beyond the turns applied to any package in industry at the present time.

In addition to the varying speed of rotation given to the cam, axial movement of the cam will be had by reason of the shifting of the shaft through the cam surface in groove 41 and cam follower 55 so that a variation directly in pro- To increase the length of traverse portion to the throw of this caml will further be produced on the traverse which governs the packaging of the yarn, while at the same time this axial shifting will move spiral gears i1 and I9 relative to spiral gears 2| and 22 which, as illustrated in Fig. 12, will cause an increase or decrease of the gears in-speed due to the anguiarity of the teeth. In Fig. 12, axial movement a: amount will cause a change in speed suiiclent to gain or lose y distance during the time of the axial movement. If the short length of the package is to be produced, or a long length package is to be produced, requiring a different length of traverse, adjustment will be had by the handle 84 to accomplish a settingof the device necessary for the production of the length of traverse required. This tilting of the guide 1l toward the position of the dotdash line 92 (see Fig. 6) will swing lever 62 each stroke toward .lines 93 to decrease the throw of the traverse bar.

This traverse motion will be used in a yarn packaging machine in which the yarn package will be rotated at a constant rate so that variation produced inthe traverse motion will eiiect the packaging in accordance with the variations produced in the traverse motion.

The bell crank lever 62 is pivoted to the main cam follower and carried by link 65 pivoted at its ends to swinging arms 66 and 68 while pivoted to the traverse bar at one end and guided on a pivot 15. This arrangement provides for a pivoting of the'parts that better lubrication may be maintained than with the customary sliding parts.

I claimt.

l. In a traverse motion for yarn packaging, a

member having a uniformly-progressing guide surface, a part deriving its motionl from said surface, and means including an eccentric through which motion is imparted to said member to nonuniformly move said part, means to non-uniformly rotate said eccentric, and additional means to axially move said member. 2. In a traverse motion for yarn packaging, a member having a uniformly-progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably-mounted thereon, means for rotatably connecting said annulus and member, and means for rotating said annulus.

3. In a traverse motion for yarn packaging, a member having a uniformly-progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably-mounted thereon, means for rotatably connecting said annulus and member, and means for rotating said annulus and eccentric.

4. In a traverse motion for yarn packaging, a member having a uniformly-progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably-mounted thereon, means for rotatably connecting said annulus and member, and means for rotating said annulus and eccentric at different speeds.

5.*In a traverse motion for yarn packaging, a member having a uniformly progressing guide surface, a part deriving its motion from said surface, means including an eccentric through which motion is imparted to said member to vary the speed of rotation of the member to non-uniformly move said part, and additional means to axially move said member, and to further non,- uniformly rotate said eccentric.

6. In a traverse motion for yarn packaging, a member having a uniformly-progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably mounted thereon, means for rotatably-connecting said annulus and member, means for rotating said annulus, and additional means to` at the same time axially move said member.

7. In a traverse motion for yarn packaging, a member having a uniformly progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably-mounted thereon, means for rotatably connecting said annulus and member, means for rotating said annulus and eccentric at different speeds, and additional means to at the same time axially move said member.

8. In a traverse motion for yarn packaging. a means for producing a reciprocating motion, a bell crank lever through which the saidmotion is transmitted to the work, and means for controlling the direction of motion of one end of said lever to determine the length of the/reciprocating motion transmitted to the work.

9. In a traverse motion for yard packaging, a bell crank lever having the end of one arm connected to the traverse bar, means to produce a substantially straight-line reciprocating Amotion on the fulcrum of said lever, and means to control the direction of'motion of the other arm of said lever to vary the length of traverse of the nrst said arm and consequently the traverse bar.

10.. In a traverse motion for yarn packaging, a bell crank lever having the end of one arm connected to the traverse bar, means to produce a substantially straight-line reciprocating motion on the fulcrum of said lever, and an inclinable slide attached to the other arm to control its di` rection of motion and vary the length of traverse of the nrst said arm.

11. In a traverse motion for yarn packaging, a traverse bar, a cam for producing a reciprocating motion, a cam follower, and linkage means pivotally connected for relative movement for connecting saidy cam follower to said traverse bar whereby relative movement in the line of connection is rotary.

12. In a traverse motionfor yarn packaging, a means for producing a reciprocating motion, a bell crank lever through which the said motion is transmitted to the work, one arm of said bell crank lever being divided into two parts, jointed together, and means to resiliently hold said parts in motion-transmitting relation until a predetermined resistance occurs to relatively move said par s.

13. In a traverse motion for yarn packaging, a member having a uniformly progressing guide surface, a part deriving its motion from said surface, driving means for said member comprising an eccentric, an annulus revolvably-mounted thereon, means for rotatably connecting said annulus and member, means for rotating said annulus and eccentric at different speeds, and additional means to at the same time axially move said member and at the same time cause a speed variation. l

14. A traverse motion for .yarn packaging comprising a cam rotatably mounted and provided with a uniformly progressing guide surface thereon, said cam having a hub provided with a radially extending slot thereon, an eccentrically mounted annulus having a pin thereon extending 15. A traverse motion for yarn packaging comprising a member having a uniformly progressing guide surface, a part deriving its motion from said surface. an eccentric through which motion is imparted to said member to non-uniformly move said part, and means to rotate said eccentric including a pair of spiral gears operatively -in mesh with each other and one of which is axially movable relative to the other, and means 5 for axially moving said axially movable gear.

ALBERT E. WINSLOW.

" CERTIFICATE OF CORRECTION.

Patent No. 2,26h,h2h. December 2, 1914.1. v

ALBERT E. WINSLOW.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: KImge 5, second column, line 27, claim 9, for "yard" read -yarn and that the said Letters Patent should be reed with this correction therein tht the same may conform to the record of the case in the Patent Office.

signed am sealed this 10th day of February, A. D. 191m.

Henry Van Arsdale, (Seal) Acting Commissioner .of Patents. 

